import { TReferenceProps } from '../../..';
import { IStringProps, TStringValidatorResult } from '../_types';
export interface IIsVariableWidthProps {
}
/**
 * Check if the string contains a mixture of full and half-width chars.
 */
export declare const isVariableWidth: (props?: TReferenceProps<IIsVariableWidthProps> & IStringProps) => TStringValidatorResult;